| William P. Castelli | |
| Birth Date: | 21 November 1931 |
| Birth Place: | New York City, U.S. |
| Occupation: | Physician |
William Peter Castelli (born November 21, 1931) is an American physician, epidemiologist and former director of the Framingham Heart Study.
Castelli was born at New York City.[1] He graduated B.S. in zoology from Yale College in 1953 and received his MD from Université catholique de Louvain in 1959.[1]
Castelli completed his internship at Kings County Hospital Center in 1959 and completed a residency in medicine at Lemuel Shattuck Hospital.[2] He did his post-doctoral fellowship with David Rutstein at the Department of Preventive Medicine at Harvard Medical School. He joined the Framingham Heart Study in 1965.[2] He was the director of the Framingham Heart Study 1979–1995.[1] [3] [4] He has credited data from the Framingham Heart Study to lower cholesterol levels as saving his own life.[5]
He established the Framingham Cardiovascular Institute for which he was medical director.[1] [6] Castelli taught epidemiology and prevention of atherosclerotic cardiovascular disease at Harvard Medical School, Boston University School of Medicine and University of Massachusetts Medical School.[2] He advocates a diet low in saturated fat to reduce heart disease risk.[5]
He married Marjorie Irene Fish, they have several children.[1]